Double plow



(No Model.)

L. GUTHRIE.

DOUBLE PLOW.

atented Nov. 3, 1885;

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UNITED STATES PATENT OFFICE.

LEVIS GUTHRIE, OF WVATERLOO, INDIANA. I

D O U B L E P L O W.

SPECIFICATION forming part of Letters Patent No. 329,831, dated November3, 1885.

Application filed January 24, 1885. Serial No. 153,863. (No model.)

To all whom it may concern.-

Be it known that I, LEwIs GUTHRIE, a citizen of the United States,residing at Waterloo, in the county of Fayette and State of Indiana,have invented certain new and useful Improvements in Double Corn-Flows,of which the following is a specification, reference being had to theaccompanying drawings.

My invention relates to that class of cornplows which are operated bytwo horses and constructed to work two rows of corn at once.

My invention consists in a novel construction and combination of parts,in attaching two plows to one beam, and in supporting the frame betweenthe wheels by a double arch, and in attaching the motive power to theplow, and in the manner of equalizing the draft when attached.

In the drawings, Figure 1 is a side elevation of my improved plow. Fig.2 is a top plan view of one-half of the same. Fig. 3 is a verticalsection of the same, taken at the center of the axle, and attachmentsthereto.

In Fig. 1, a represents the tongue of a double corn-plow,which extendsbackward to a point perpendicular to the axle, where it is inter sectedby a cross-framing, f, Fig. 2, and to which itis attached rigidly. Thetongue is supported forward of the axle by angular braces g, F? gs. 2and 3, which are attached to the axle at their lower ends, and bolted tothe tongue at the point of connection. It has an additional support froman arch-frame, which is made of two pieces, 0', the lower ends of whichare rigidly attached to the inner ends of the axles, and the upper endsbolted to the sides of the tongue, immediately in the rear of theangular brace q. The rear end of the tongue is supported by a similararched frame, which has a connection with the inner ends of the axle, incommon with the arch c, and rises vertically to its connection with thetongue in front of the cross-framing f, as seen at d, Fig. 2. The axleAis supported at its outer end by the wheel H, and its inner end issupported by the arched frames and angular braces just described, thedistance between the inner ends of the axles being about equal to thelength of one of them, while the archframes connecting their ends withthe tongue are constructed of such height as may be desired. ,Aplow-beam, i, is hinged to the axle A, at a point near the inner end ofthe same, by means of a clip, which allows the beam 1' to be raised anddepressed, and ahinged joint composed of thejaws of the clip, and avertical axis-pin, which is inserted in the same, allows the end of thebeam i a lateral movement, the two constituting a doublehingedcombination,which allows the end of the beam t" a Vertical and ahorizontal movement. The rear end of the beam i is curved downward at s,and has the shoe or share r bolted to its lower curved portion. brace,s, is bolted to the vertical or curved portion of the beam,connectingthe beam with the handle 25 of the plow. From the lower end of thehandle t a brace-rod, t, connects the main beam 2" with the handle t,and with the rear end of a sub-beam, s, which is secured to the mainbeam 2" midway of its length, and which diverges in an angle to thelower end of the handle, and is turned horizontally to a line parallelto the main beam i, and is bent down vertically at h, Fig. 2, formingthe standard R, Fig. 1, to which a shoe or share is bolted, thuscreating a pair of plows at a proper distance from each other, the innerone slightly in front, both operated by the same beam and handle, andoperated as one plow. At the point of attachment of the sub-beam s,brace t, and handle 15, a loop, q, is fixed vertically.

In Fig. 1, b is a vertical curved draw-bar, provided with two or moreholes laterally through its lower central part, and having attached atits upper end a link, 0, which connects it to the end of an equalizinghorizontal vibrating bar, j, Fig. 2. Slightly-curved arms 0 0, which areattached to the hub of the wheel at their rear ends, extend forward to apoint outside the periphery of the wheel, and, inclosing that portion ofthe wheel between them, are brought together at their forward ends andsecured to each other,with the drawbar b between them, by a screw-bolt,as seen at B. The lower end of the vertical draw-bar b is provided witha horizontal link, a, to whicha single-tree, Z, is attached, and theline of draft from thesingle-tree to the collar of the animal beingupward and forward, the draft so applied has a tendency to raise thedrawbar and arms to which the draft is applied, and in a large degreetakes the weight and A laterallycurved bearing of the tongue and itsattachments from the necks of animals employed. The holes,placed oneabove the other in the drawbar b,al1ows the connection between thedrawbar and the arms 0 0 to be raised or lowered on the draw-bar,andthus modify the angle of the line of draft between the hub of the wheeland the point where the draft is applied. The equalizing-bar j isattached to the tongue on its center by a bolt and hammer-strap, in theusual manner of a double-tree, whichit nearly resembles in itsconstruction and movement. A stay-chain, d, connects the bar j and thecross-framing f, after the manner of a common stay-chain between adouble-tree and a wagonaxle. It will be seen that when the lower end ofthe draw-bar b is brought forward by the draft upon it the upper end ofsaid bar is inclined backward, carrying with it the link 0 and that endof the barj to which the link is secured, which brings the opposite endof the barj forward, by means of the fulcrum composed of the bolt andtongue at their point of connection, until it is caught and held by thestay-chain at that end, when the resistance is communicated to thecross-framing f and to the body of the structure on that side, by whichmeans the draft applied to either side of the double plow is made to acton the opposite side of the same by means of the devices hereindescribed.

In Fig. 3, 0' represents one part of the vertical arch-frame having itslower end made of 'a band which surrounds the inner end of the axleA,and its upper curved end is secured to theinner side of the tongue atat w. The brace q springs from a similar band, which grasps the axle,and is held in position by a set-screw, 3, while its upper end issecured to of the angular brace q, act also as a shoulder for the innerend of the hub, while the collar and set-screw 4,which form the base ofthe vertical post h,also act as a cap for the end of the hub, and alsoas a protection to prevent sand'or dirt from reaching the axle. Thecross-framing f is furnished with a plate, 9, on its back side, whichplate terminates at each end in hooks g g,upon which the loops q may becaught when it is desired to raise the plows from the ground in movingthe double plow from field to field. The setscrews 1 2 3 4 are tappedinto the axle A,and

the whole frame-work and the front superstructure are actuatedvertically or laterally by the tongue. The wheel 00 is in the commonform and of any required size.

Having thus fully described my said improvements, what Iclaixn as myinvention is 1. A pole and single-tree, in combination with a curvedupright draw-bar, b, the arms 0,which are attached at their outer endsto the lower, part of said draw-bar and at their inner' ends to thewheel hub or spindle, the equalizing-bar which is attached to saidtongue, and the links connecting said single-tree to the lower end ofsaid draw-bar and said equalizing-bar to the upper end of said draw-bar,substantially as set forth.

'2. In combination with the main frame and a hi LEWIS GUTHRIE.

mark.

Witnesses:

W. A. PEELLE, W. T. DENNIS.

